Piperidine → 2,4-dimethyl-5-[2-oxo-5-phenylmethanesulfonyl-1,2-dihydro-indol-(3Z)-ylidenemethyl]-1H-pyrrole-3-carboxylic acid (2-diethylamino-ethyl)-amide

Participants

Reaction Conditions

Reaction Steps

To a solution of 5-phenylmethanesulfonyl-1,3-dihydro-indol-2-one (100 mg, 0.34 mmol) and 5-formyl-2,4-dimethyl-1H-pyrrole-3-carboxylic acid (2-diethylamino-ethyl)-amide (92 mg, 0.34 mmol) in ethanol (4 mL) was added piperidine (0.1 mL). The reaction mixture was stirred at 25° C. for three days. An orange solid product was precipitated out, filtered, washed thrice with ethanol, and dried under high vacuum to provide to provide 99 mg (55%) of 2,4-dimethyl-5-[2-oxo-5-phenylmethanesulfonyl-1,2-dihydro-indol-(3Z)-ylidenemethyl]-1H-pyrrole-3-carboxylic acid (2-diethylamino-ethyl)-amide as a yellow solid.

Provenance & Evidence